Brown Stuff

I recently returned from a conference in Australia, only to find my tank was covered in brown stuff. It looks like some sort of algae, but I’m not sure what kind. A few things happened — about 2 days before I left I received an order of mangrove jellies. I switched the wave maker to…

Chemical highs…and lows

The tank has been up and running for a while now. The environment of the tank is doing very well in terms of the nitrogen cycle, all levels are staying close to zero. The calcium and alkalinity have been dropping though, with occasional dips in the pH. The last pH drop killed my jellyfish, so…